Suharti. 2021. “Nutrition In Improving Body Immunity As an Effort Protection of COVID-19 For Teachers of SMP Negeri 1 Perak Jombang”. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat 2 (2), 192-97. https://doi.org/10.36526/gandrung.v2i2.1175.